Children who are sexually abused are nearly five times more likely to inject drugs in adulthood as those who are not — while children who witness violence are about three times more likely — according to new research released today at the American Public Health Association’s 2016 Annual Meeting and Expo in Denver.

Whether it was a Boston-born transgender patient or a Ugandan working in domestic servitude, Hanni Stoklosa has seen a variety of patients who were victims of sex or labor trafficking come through her emergency room.